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Pc Review 2

WEEK 2 REVIEW TEST
LaDwidia Castro
University of Maryland University College

ABSTRACT

All nine essay questions to Week 2 review test have been answered in complete sentences. The following format is APA.

Input and output is pretty self explanatory, anything that you type in the computer is considered input for example, at work I have multiple ways to get into computers can use my CAC card to log-in or use my username and password. Either way I have to type something in whether it is my CAC card pin number or a username and password. Both methods of logging in are considered input because I am typing something into the computer. Letters, numbers, special characters etc.; Output on the other hand is what is the computer outwardly processes. PowerPoint presentations, printing documents, training videos with audio and anything else that can be displayed or produced from the computer. Example of an Input device is a keyboard; example of a hardware device is a printer.

A dumb terminal is just a monitor used solely as an output device, the one that I see most often now that I am pregnant is in the hospital pharmacy. When I have to pick up a prescription, I check-in by giving the clerk my ID card, at that point my name is displayed on multiple monitors in the pharmacy, and once my prescription is ready my name will be removed from the list. After that I get in line show my ID card again and get my prescription,

Digitizers are pretty cool; they convert hand drawn images into digital data, which is displayed on the monitor screen. The images are drawn with a stylus like tool that acts somewhat like a mouse.

The sharpness of an image is referred to as resolution. I have to admit that the first thing I adjust on my TV or computer monitor if an image it not clear is the resolution and then once I get that the way I want it I start messing with all the contrast and all the other options available on the menu. The Internet is a server and the...

...﻿Unit 2Review: Atomic Structure, Nuclear Chemistry, Quantum Theory, Periodic Table
Basic Atomic Structure
1. Complete the following chart.
2. Atomic mass is a decimal. Why?
3. Define Isotope.
4. Positively charged ions are formed as atoms _______________(lose, gain) electrons.
5. Calculate the atomic mass of the following sample of Silicon. 92.21 % 28Si, 4.70% 29Si, and 3.09% 30Si. Answer to 2 decimal places, remember units.
6. When an atom gains two electrons, it becomes an ion with a charge of __________.
Nuclear Chemistry
Complete the following nuclear decay reactions.
Type of Decay (α, β, γ)
7. ______________ 99m43Tc  9943Tc + ______
8. ______________ 24795Am  0-1e + _______
9. ______________ 17593Np  42He + _______
10. What is the difference between fission and fusion? Which releases more energy?
11. What is the difference between nuclear reactions and chemical reactions? (hint: which parts of the atom are involved)
The Bohr Model and Quantum Theory
12. The probability region through which an electron may move is a(n) ______________________________.
13. At a p sublevel, there are (how many) ____________ orbitals. At an s sublevel, there are ___________ orbitals. At a d sublevel, there are ____________ orbitals.
14. The maximum number of electrons possible to any p sublevel is ____________.
15. What was Bohr’s major contribution to our understanding of atomic...

...Behavior
CHAPTER 2REVIEW QUESTIONS
2–1. Which costs are pertinent to economic decision making? Which costs are not
relevant?
The marginal (incremental) costs and benefits are pertinent to economic
decision making. Sunk costs and benefits are not relevant. In economics,
“bygones are forever bygones.”
2-3. The Solace Company has an inventory of steel that it originally purchased for
$20,000. It currently has an offer to sell the steel for $30,000. Should Solace’s
management agree to sell? Explain.
You cannot answer this question without additional information. The
historic cost of the steel is irrelevant. What is important is the current
opportunity cost of the steel. For example, if the current market price of
steel is $40,000 you should not sell the steel for $30,000.
2-4. Suppose that you have $900 and what to invest the money for one year. There
are three existing options.
(a) The city of Rochester is selling bonds at $90 per unit. The bonds pay $100 at the
end of one year when they mature (no other cash flows).
(b) Put the money under your mattress.
(c) The one-year interest rate of saving in the Chase Bank is 7 percent.
Which one will you choose? What is the opportunity cost of your choice? Explain.
Choose option (a). By definition, opportunity cost is the value of the bestforegone option. So the opportunity cost of (a) is the value of (c) in this
case, $63 = $900 ×7%....

...﻿Ch2 Review
1. The English colonists of Jamestown initially focused most on
searching for gold.
2. The first important economic boom in Jamestown resulted from
the production of tobacco.
3. When the House of Burgesses was created in Virginia in 1619,
colonists were given a share of local political representation.
4. The first Africans imported to Virginia in 1619
were most likely indentured servants.
5. The Virginia Company
had its charter revoked by James I.
6. In which area of technology were Indians more advanced than the Virginia colonists?
agriculture
7. Which of the following is true of Bacon's rebellion?
It spelled the demise of the Virginia Company.
It forced the royal governor of Virginia to resign.
It spread throughout several colonies.
It carried on for several years.
It was a consequence of the indentured servant system.
8. In 1608, Puritan Separatists who wished to leave England
could not legally do so.
9. In 1620, the Puritan Pilgrims who came to North America
were Christian missionaries.
10. Compared to King James I, King Charles I's treatment of Puritans was
more hostile.
11. The Puritan merchants who founded the Massachusetts Bay Company
carried out the largest single migration in the seventeenth century.
12. The Massachusetts Bay Puritans
created a colonial "theocracy".
13. The Puritan founders in Massachusetts who described their colony as a "city upon a hill"
felt they...

...﻿“We” Essay Review
Jonna Vercellini
Eric Lane and Michael Oreskes certainly meant for “We” to be a piece to stir up some long-lost patriotism in their American readers. The overarching point of the essay – and one that the authors refer to many times throughout their writing – is that somewhere between the framing of the Constitution and the evolution of our modern society, the vast majority of American citizens have lost touch with what the Constitution means and what it stands for and that these citizens become frustrated with how our government functions because they fail to realize that it is functioning as intended by the Constitution’s framers.
Several paragraphs into the piece, Lane and Oreskes make a statement which I feel summarizes the entire essay quite succinctly: “We Americans love the framers. We consume books about them and revere their words. But we have lost our connection to what they actually invented and how that invention over time created in us what we have come to call a Constitutional Conscience.” To support this point, the authors offer some data from a 1998 Department of Education study which found that 75 percent of high school seniors were “not proficient in civics” and that 33 percent of the students sampled did not even have a basic understanding of how the government operates. Only 9 percent of students included were able to think of two reasons for citizens to participate in the democratic process.
The authors offer...

...Chapter 2Review: The Chemical Level of Organization
Chemistry Review:
Atoms- smallest units of matter, composed of subatomic particles
Protons- positive charge, in nucleus
Neutrons- neutral charge, in nucleus
Electrons (e-)- negative charge, orbit nucleus (never touch it!)
Atomic mass- protons + neutrons
Atomic number- number of protons
*Hydrogen only has one proton and one electron, no neutrons
When hydrogen loses its electron, it is often referred to as a “proton” (hydrogen ion) and has a
+1 charge
Electrons circle the nucleus in orbitals or pathways
Closest orbit (shell) to nucleus, lowest energy, hold 2 eSecond shell out holds 8 e-, as does the 3rd
atoms with unfilled shells are reactive and bind together to complete their shells
Molecule- 2 or more atoms that share electrons (covalent bond)
Compound- 2 or more different atoms, bond is not important (covalent or ionic)
Covalent bond- atoms share electrons
Polar covalent bond- charged molecule due to unequal sharing of eNonpolar covalent bond- no charge, equal sharing of eIonic bond- atom that has lost e- (cation, +) or gained e- (anion, -) are attracted to each other
Salt- ionic compound
Hydrogen bond- occurs between molecules that have polar covalent bonds
Metabolism- all of the reactions in the body at any given moment
Building- anabolic, synthesis, dehydration rxn’s (require input of energy- endergonic)
Breaking down- catabolic,...

...﻿
1.
People must satisfy their basic lower level needs before progressing to higher level needs.
a. True
b. False
2.
Unlike personal communication, communication exchanges in organizations focus on tasks.
a. True
b. False
3.
All of the following statements about human needs and motivation are true except:
a. management has been impacted by the influence of behavioral scientists in sociology and psychology.
b. communication between and among people is complex.
c. all companies now recognize the need to empower their employees.
d. management can gain valuable insights from employees to facilitate effective communication.
4.
The overall effectiveness of a message can be impacted by nonverbal communication, which includes both meta-communication and kinesic messages.
a. True
b. False
5.
While managers use both verbal and nonverbal messages to communicate, which statement is true of nonverbal messages?
a. Nonverbal messages account for most of the total meaning of a message.
b. People will focus more on the verbal message.
c. People tend to ignore the nonverbal cues.
d. People are more sensitive to messages expressed through words than through actions.
6.
Listening for feelings normally takes place in a one-to-one situation.
a. True
b. False
7.
The art of listening promotes the development of ideas and learning but discourages individual creativity.
a. True
b. False
8.
In general,...

...This item is the value of the interest payments (the coupon rate times the face value of the bond) divided by the current market price of the bond. For these purposes the payment frequency does not matter. We consider only the total amount paid in a given year. As a result we do not care about the time value of money when computing current yield (one reason why I am not a huge fan of this concept).
Payment/Current Bond Price = Current Yield. We know that the payment does not change only the market price.
As an example:
A bond has a current market price of 948.72, the face value of the bond is 1,000. The coupon rate for this bond is 5.8%. The bond makes semiannual payments.
Solution: .058*1000 = 58  58/948.72 = 6.11%
Example 2:
A bond has a 6.9 percent coupon making semiannual payments. The bond was issued with a par value of $1000 and is now trading in the market at 1030.45. What is the current yield?
Solution: .069*1000 = 69  69/1030.45 = 6.70%
Occasionally, bonds when traded will be quoted as a percentage of Par. All this means as briefly shown in one example from class is the current market price is $1000 times the quoted percentage of par. So if a bond is quoted at 88.74% (usually the percent sign is left off, but note that this is always referring to a percentage) par its current price is 1000*.8874 or $887.40. This can be convenient when calculating Current Yield because now one can simply take the coupon rate of the bond...